Difference between @synthesize and @dynamic

After declaring the property attribute, there are 2 implementation options

@synthesize

During the compiler, let the compiler automatically generate the Getter/setter method.

Custom masks automatically generate this method when there is a custom save or Fetch method

@dynamic

Tells the compiler not to automatically generate Getter/setter methods to avoid warnings during compilation

Then implement the access method by yourself

Or access method creates bindings dynamically at run time: primarily used when implementing nsmanagedobject subclasses of CoreData, and dynamically generating subclass properties when the program is running by the core data framework

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